[OSM-talk] Wanted feature for API 0.7 ??
Maarten Deen
mdeen at xs4all.nl
Mon Jun 8 16:18:42 BST 2009
Frederik Ramm wrote:
> Hi,
>
> Peter Dörrie wrote:
> > The current renderes wouldn't be able to handle it either and forcing 50+
> > applications to change would be unappropriate.
>
> Why, we're doing that all the time ;-)
>
> There are many unsolved questions here. For example: What happens if
> parts of the "ancient" world transcend your "fourth dimension", e.g. a
> contemporary secondary road uses a few bits of an ancient Roman road.
> They would surely share the same nodes, wouldn't they? But if someone
> then deletes the secondary road (which he downloaded without ever
> knowing that the Roman road also exists because that was shielded from
> him), he must not delete the nodes because they are still used by other
> objects...
>
No... in the temporal database you don't delete nodes or ways, you set
the correct "used in" period ;)
But it opens a large can of worms if you are looking at temporal
information. All SciFi books can tell you that.
Maarten
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